Palms tan slightly but never become as dark as our shoulders, for instance, regardless of the amount of light they receive.
Studying our natural internal bacteria could help doctors cure diseases that affect millions
With help from an ice architect
It might not (just) be foul play.
Forensic scientists in Switzerland are pioneering a whole new way to do autopsies. No scalpel required.
Are mysterious skin cells that never stop dividing a form of cancer, or the best hope yet for treating burn victims?
Los Alamos scientist Steen Rasmussen plans to one-up nature by cobbling together a brand-new creature that reproduces and evolves. Is he making a biotech marvel that will do our bidding, or a test-tube-size Frankenstein monster?
An offering of children and llamas
Some of the most common maps don't accurately depict Earth's surface. But it's not for lack of trying.
Antarctic emperor penguins may be adapting to diminishing sea ice by scaling towering coastal glaciers to lay their eggs.
It's science—on ice.
A Weirdest Thing holiday spectacular.
Researchers also finally figured out why Georgia O'Keeffe's paintings have so many of these pimples.
Jellyfish invasions, Internet auctions, god particles: Read about the year's biggest science stories before they happen. Bonus: How to decipher geeky jargon and when to buy a DeLorean
Insects are ravaging North American forests like never before, and NASA satellites are watching the landscape change.
Need to get away from it all? Popular Science presents an exclusive tour of CSS Skywalker, an orbital resort that's a lot closer to reality than you might think
The quest to understand, explore, and protect the amazing animals
A supersonic gun takes the ouch out of vaccine drug delivery
Winners of the Nikon's annual Small World competition represent the best in through-the-microscope photography